Cheat Engine is an open-source program that enables you to modify single player games running on Windows computers. You can make them easier or harder depending on your preferences. It comes with a memory scanner, debugger, speed hack and various other tools.

Tutorial

Due to the fact that this software potentially could break a game or even corrupt Save files, it is recommended to learn the basic actions before attempting to use Cheat Engine. It is necessary to note that the first time you launch the utility you are provided with the option of going through a series of tutorials.

Game modification

One of the things you can do with this tool is to adjust various numerical values or toggle speed hack. In case you need to modify the amount of currency you have in a game, you need to set the program to scan your computer for currently running processes and pick the desired option. Then, you are able to search for the amount you have and replace it with the value that you want, for example switch 100 for 999.

It is worth mentioning that the speed hack functionality helps you speed up more than just games, you may also use it to increase the playback rate of some multimedia utilities like Winamp, along with other types of software.

Features

free to download and use;
compatible with modern Windows versions;
gives you the ability to modify single player games;
it is possible to speed up multimedia players;
includes tools for software analysis.